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Multifunctional antibacterial film and preparation method thereof

An antibacterial and multifunctional technology, applied in the field of biomedicine, can solve the problems of poor safety, poor bonding force, and difficult film uniformity in wet silver plating, and achieve guaranteed service life, improved sterilization effect, and excellent chemical stability. Effect

Inactive Publication Date: 2018-03-30
HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the safety of wet silver plating is poor, the uniformity of the film is not easy to control, and the bonding force is poor. In order to solve the above problems, the present invention provides a multifunctional antibacterial film and its preparation method

Method used

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  • Multifunctional antibacterial film and preparation method thereof
  • Multifunctional antibacterial film and preparation method thereof
  • Multifunctional antibacterial film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] as attached Figure 1-5 As shown, a multifunctional antibacterial film includes a substrate 1 covered with a layer of silver film 2 on the substrate 1 covered with a layer of TiO 2 Nanoparticles 3, TiO 2 The nanoparticles 3 are covered with a polytetrafluoroethylene film 4 , and the surface of the polytetrafluoroethylene film 4 is provided with grooves 5 .

[0033] The thickness of the silver film 2 is 200-300 nm, and the thickness of the polytetrafluoroethylene film 4 is 200-300 nm.

[0034] As the preparation method of above-mentioned multifunctional antibacterial film, concrete steps are as follows:

[0035] (1) Silver-plated film: silver-plated film on the substrate;

[0036] (2) Spray TiO2 2 Nanoparticles: Spray TiO on the surface of the silver film 2 nanoparticles;

[0037] (3) PTFE coating: with TiO 2 The surface of the silver film of nanoparticles is coated with polytetrafluoroethylene film;

[0038] (4) Embossing: embossing grooves on the PTFE film.

...

Embodiment 2

[0047] A multifunctional antibacterial film, comprising a substrate 1 covered with a layer of silver film 2 covered with a layer of TiO 2 Nanoparticles 3, TiO 2 The nanoparticles 3 are covered with a polytetrafluoroethylene film 4 , and the surface of the polytetrafluoroethylene film 4 is provided with grooves 5 .

[0048] The thickness of the silver film 2 is 200 nm, and the thickness of the polytetrafluoroethylene film 4 is 200 nm.

[0049]As the preparation method of above-mentioned multifunctional antibacterial film, concrete steps are as follows:

[0050] (1) Silver-coated film: The silver film is plated on the substrate by magnetron sputtering coating method. The process conditions of magnetron sputtering coating film are as follows: a silver target with a thickness of Φ60mm and a thickness of 4mm is used, the target distance is adjusted to 60mm, and the power is 100W, DC mode sputtering.

[0051] (2) Spray TiO2 2 Nanoparticles: Spray TiO on the surface of the silver...

Embodiment 3

[0055] A multifunctional antibacterial film, comprising a substrate 1 covered with a layer of silver film 2 covered with a layer of TiO 2 Nanoparticles 3, TiO 2 The nanoparticles 3 are covered with a polytetrafluoroethylene film 4 , and the surface of the polytetrafluoroethylene film 4 is provided with grooves 5 .

[0056] The thickness of the silver film 2 is 220 nm, and the thickness of the polytetrafluoroethylene film 4 is 220 nm.

[0057] As the preparation method of above-mentioned multifunctional antibacterial film, concrete steps are as follows:

[0058] (1) Silver-coated film: The silver film is plated on the substrate by magnetron sputtering coating method. The process conditions of magnetron sputtering coating film are as follows: a silver target with a thickness of Φ60mm and a thickness of 4.5mm is used, the target distance is adjusted to 60mm, and the power 110W, DC mode sputtering.

[0059] (2) Spray TiO2 2 Nanoparticles: Spray TiO on the surface of the silver...

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Abstract

The invention discloses a multifunctional antibacterial film. The multifunctional antibacterial film comprises a substrate which is covered with a silver film body. The silver film body is covered with TiO2 nanoparticles. The TiO2 nanoparticles are covered with a polytef film body. Grooves are formed in the surface of the polytef film body. By adopting the silver film body, the reflectivity can reach 99%, and the sterilization effect is improved; and the diameter of the TiO2 nanoparticles is 20-30 nm, and radical anions such as OH- and O2- can be generated in nanoseconds or picoseconds to attack surrounding bacteria. The adopted polytef film body has the good chemical stability, corrosion resistance, high lubrication performance, high non-sticking performance, high electrical insulating property and good ageing resistance, can work at +250 DEG C to -180 DEG C for a long time, and the service life of the film is ensured; and the grooves are prepared through a nanoimprint mode, the specific surface area is enlarged, and the sterilization effect is improved.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, and in particular relates to a multifunctional antibacterial film and a preparation method thereof. Background technique [0002] With the progress of industrialization, people are plundering resources crazily, resulting in water pollution, tree destruction, gradual increase of waste and garbage, and increase of dust and other pollutant particles in the air. People did not properly dispose of the waste, which destroyed the original ecological balance and bred a large number of harmful bacteria, which seriously affected people's health. At the same time, with the technological update of medical equipment, people have high requirements for their own health, which creates a contradiction. [0003] TiO 2 Under the action of light, nanomaterials can activate the surface layer to absorb oxygen and water, and generate OH - and O 2 - and other free radicals, which can kill bacteria. TiO 2 Nano...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/00C23C14/14C23C14/35C23C24/04C23C16/513C23C16/56
CPCC23C14/14C23C14/35C23C16/513C23C16/56C23C24/04C23C28/00
Inventor 王云飞高志廷张黎燕赵永猛高志超武明超王建雨孟银娜
Owner HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE
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